markey



J. J. MARKEY TINNING POT A ril 3, 192&

2 Sheets-Sheet 1 April 3, 1928. MARKEY R 16,922

TINNING POT origiflal, Filed Feb; 191-1925", 2 sheets'shn 2 amnion Joan am Reissued Apr. 3, 1928.v

UNITED; STATES? Re. 16 ,922 PATENT OFFI E.

p JOHNJ: MABKEY', orwAsHING'roN, PENNSYLVANIA.

TINNING POT.

Original No'.-;1,585,308, dated na is, 1926,-Seria1 No. 10,43 flled Febr-uary 19. 1925., Application at reissue filed August 12,

This invention relates to an improved tinningpot'made from wrought-iron plates or other suitable material and; has for its object to rovide a t inning pot which'willbe more d iirable than pots heretofore constructed. The improved pot is madexby bending a plate bendable under heat, into approximately U-shape and welding end walls and wells thereto. A pot made in this. manner is extremely durable; and not subject to breaka e due to contraction andexpansion under eat... The potis. also provided with acentral% late extending between the-side having itslower edgespaced from thebottom of-the 'p0t.-

In; tinning pots, -.1t is customary to provide alayer orbath' ofoil, such as palm .oil, over the molten tin, the plates or material to be tinned-i passing. upwardly fromthe. molten tin through? the heated oil. This oil must be kept at a certain definite temperature in order to obtain the most desirable results in the tinning o eratio-n.

Heretofore it as been necessary to ladle out the oil and replenish the supply with cool oil, an operation which is not only laborious but also time-consuming and expensive. Thepresent inventionaims to overcome this objectionable method of cooling the oil by providing a cooling coil within that part of the chamber which contains the palm oil. I

The above and other features of novelty and invention will appear from the detailed description taken in connection with the accompanying drawings forming part of this specification.

Referring to the drawings:

Fi re 1 is a plan view of the improved pots owing the same as consisting of two chambers in open communication at the bottom and the cooling coil as arranged within one of these chambers.

Figure 2 is a vertical section taken on line 2-2 of Figure 1.

Figure 3 is a perspective view ofthe parts making up the pot in disassembled relation, the coolin pipe, however, being omitted.

In the rawings, 1 indicates one chamber of the pot and 2 the otherchamber, these chambers being in open communication through a passage 3 below a vertically disposed wall 4 extending between the sides of the pot. The walls of the chamber 1 are not as high as those of the chamber 2 for are 1927. Serial N01, 212,598.

the reason that the chamber 2, is desi ned to hold. oil above the molten tin in t e pot. Extending along the side walls of the chamber 2 is a pipepg5 having asuitable. control valve 6 for regulating-the flow of cooling fluid through the pipe. This pi e is disposed a suitable distance below t e top of chamber 2 so as to obtain more than mere surface cooling of the oil. It will be obvious' that by providing cooling means of the type indicated the temperatureofi the oil will be suitably controlled in a very easy manner by a workman standing alongside the pot manipulating the valve 6, or the temperature of, the oil may be controlled by other suitable means. I j f I The cooling coils arranged as shown en- .surea continuous circulation of the oil in thechamber 2 by convection currents flowing downwardly along thewalls of the charm.

ber 2"andi'1p.wardly from the center of the desirable effect of maintaining all the oil in the cooling chamber in homogeneous condition and prevents the charring or burning of any part thereof by prolonged contact with the molten metal.

Extending across the bottom'of the pot is araised portion or member 7, said member being welded to the bottom of the tank. lfrdlesired, this raised portion may be made so 1 Referring now to Figure 3, it will be seen that the improved pot is constructed from a plurality of sheets. The bottom and side walls of the pot are formed from a plate bent into substantially U-form,.the bottom of the pot being the bottom of the U-shaped plate, as indicated at 8, the side walls being indicated at 9 and 10. The legs of the U-shaped plate are of unequal length, the leg 9 being shorterthan the leg 10. The ends of the pot 1plates 11 which are welded to the edges of t e U-plate. Inasmuch, as the leg 10 is higher than the leg 9, the side lates 11 are made accordingly. The vertica ly arranged plate or wall intermediate the side walls, is indicated at 4 and is welded to the end walls to form an integral part therewith. It will now be seen that the plate 11 is of different heights to correspond with the heights of the chambers 1 and 2. The opening through which the pipe 5 passes are indi cated at 5'.

The U-shaped plate is shown as having its lrelg tapering from' the bottom upwardly. oweverft e invention is not'limited to a plate of this particular form inasmuch as the plate may be of uniform thicknessthroughout. It will also be noted that the short'leg 9 has an outwardly directed flan e 12 to form a lip. The plates 11 are rovi ed with correspondin anges 13 so t at the chamber 1 is rovide with a peripheral lip along three The lugs 14'and 15 cooperatewith roller mechanism used in connection with the tinning pot.

It will, of course, -be understood that the level of the molten tin in the pot is kept "above the o enin 3 so as to prevent the oil in the cham er 2 rom flowing into the chamber 1. It will also be understood that the pot is employed in connection with mechanism well-known in the art for feeding the material to be tinned through the tin bath and oil in the pot. i

What I claim as new and novel is:

1. A tinning pot made from a substantially U-shaped plate, bendable under heat, the plate constituting the bottom and side walls of the pot, and a plate connected to the end edges of the U-sha ed member constituting 'th'eend members 0 the pot.

2. pot made from a s'ubstantialits bottom edge extendin below the top ly U-shaped plate bendable under heat, the plate constituting-the bottom and side walls of the pot, and a plate connected to the end edges of the U-shaped member constituting the end members of the pot, and cooling pipesextending through the tinnin pot.

3.- A tinnin pot a partition dividin said pot into 'two' c hambers and havin its ower edge spaced from the bottom 0 said pot, cooling pipes extending'across one of said chambers and above the bottom ed e of said partition and meansoutside sai ot for regulating the flow of cooling fluidt rough said pipes. 4

4. A tinning pot comprising a plate bendable under heat and shaped tolform the bottom, front, and rear walls Iof said tank; stepped end lates connected to said plate to form the en walls of said tank; a partition connecting said endplates between said walls to divide the tank into two chambers extend- "ing from the bottom of the tank and one deeper than the other, said partition having the shorter chamber; an regulable temperature controllingmeans in'the deeper chamlfier above the top edge of said' shorter cham- In testimony whereof I aflix my si ature.

' JOHN QLMA R Y. 

